I was going to suggest you take a look at my sig but I have been beaten to it

I tried really hard to find stats on normal twin births when I was pregnant, but all I could find was vaginal vs CS for my particular hospital (which was about 60% vaginal). However that did not take into account inductions, epidurals, etc. The stats are also difficult because many women will go into premature labour with twins, and there are greater complications with identical twins who share a placenta than fraternal twins who do not. What I did find out was that for women who have uncomplicated twin pregnancies which continue to term and are not interfered with by induction or augmentation of the 2nd twin, the CS rate was nice and low. Sorry I can't give you the figures.